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Appliance Man, Home Appliance Technician

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Experience: Appliance tech 4 years

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we have a siemens Sl34A dishwasher that wont drain. Recently

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we have a siemens Sl34A dishwasher that won't drain. Recently had the circuit panel replaced after it fried. Could that be the problem? We've pulled it out, made sure there were no blockages in the lines, nothing in the filter or down in the pump.

Yes, we pulled the torx screw. Nothing really was in there. mostly water, a little soft grey floating mush. cleaned it all out. We pulled the backflow preventer, and then replaced it with a new silicone one. We've tried flushing with baking soda, vinegar and hot water. nothing seems to help.

are you still there? got the unit out, side off, found the pump connections. ran through a cycle. when pump tried to pump, I got 112 v across the terminals, but the water would not rise high enough in the discharge to actually be expelled from the dishwasher. I can send a picture to explain what I mean.

The part you asked what it is, is the pressure chamber. They always look white and crusty. In the back part that you say water gets to here make sure where the gray drain hose connects isn't clogged. You can try to pull the gray hose of the cancel it and see if the dishwasher drains then.

No apparent clog in the discharge line. I pulled the gray hose out and blew through it. I really looked to me when the pump was going, that the output was very low pressure, rose up slowly to that line that I drew and stopped there. The air gap above did not appear to disappear, move or compress when the pump was running.

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